stoichiometry (all g to g questions)

2Al + 3H₂SO₄ -> Al₂(SO₄)₃ + 3H₂
How many grams of aluminum sulfate would be formed if 250g H₂SO₄ completely reacted with aluminum?

• 0.85 g
• 290 g
• 450 g
• 870 g

Tags

NGSS.HS-PS1-7

For the reaction represented by the equation Cl₂ + 2KBr → Br₂ + 2KCl, how many grams of potassium chloride can be produced from 356 grams potassium bromide?

• 749 g
• 225 g
• 479 g
• 814 g

Tags

NGSS.HS-PS1-7

Cl₂ + 2KBr → Br₂ + 2KCl
How many grams of potassium chloride (KCl) can be produced from 356 g of potassium bromide (KBr)?

• 749 g
• 223 g
• 479 g
• 814 g

Tags

NGSS.HS-PS1-7

6.50 grams of aluminum reacts with an excess of oxygen. How many grams of aluminum oxide are formed?

4Al + 3O₂ -> 2Al₂O₃

• 11.8 g of aluminum oxide

• 12.3 g of aluminum oxide

• 13.7 g of aluminum oxide

• 14.9 g of aluminum oxide

How many grams of Hydrogen (H₂) are necessary to completely react with 50 g of nitrogen in the reaction below?

N₂ + 3H₂ -> 2NH₃

• 10.2

• 10.5

• 10.7

• 10.9

2AgNO₃ +BaCl₂ -> 2AgCl +Ba(NO₃)₂

How many grams of silver chloride are produced from 5g of silver nitrate reacting with an excess amount of barium chloride?

• 3.67

• 4.03

• 4.17

• 4.21

How many grams of nitrogen (N₂) are needed to completely react with 15 g of hydrogen in the reaction below?

N₂ + 3H₂ -> 2NH₃

• 70 g

• 60 g

• 50 g

• 40 g

2Al + 3H₂SO₄ -> Al₂(SO₄)₃ + 3H₂

How many grams of aluminum sulfate would be formed if 13g Al completely reacted with hydrogen sulfate?

• 67.9 g

• 82.3 g

• 95.1 g

• 74.7 g

2H₂ + O₂ -> 2H₂O

How many grams of oxygen are needed to produce 25 grams of H₂O

• 22.2 g

• 18.6 g

• 20.3 g

• 24.8 g

2H₂ + O₂ -> 2H₂O

How many grams of hydrogen are needed to produce 50 grams of H₂O

• 5.6 g

• 1800 g

• 1.4 g

• 56.7 g